EP2025802A2 - Appareil ménager hybride de séchage - Google Patents

Appareil ménager hybride de séchage Download PDF

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Publication number
EP2025802A2
EP2025802A2 EP20080104996 EP08104996A EP2025802A2 EP 2025802 A2 EP2025802 A2 EP 2025802A2 EP 20080104996 EP20080104996 EP 20080104996 EP 08104996 A EP08104996 A EP 08104996A EP 2025802 A2 EP2025802 A2 EP 2025802A2
Authority
EP
European Patent Office
Prior art keywords
domestic appliance
process air
compressor
heat pump
treatment chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20080104996
Other languages
German (de)
English (en)
Other versions
EP2025802A3 (fr
Inventor
Thomas Koch
Kai Nitschmann
Günter Steffens
Andreas Stolze
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2025802A2 publication Critical patent/EP2025802A2/fr
Publication of EP2025802A3 publication Critical patent/EP2025802A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements

Definitions

  • the invention relates to a domestic appliance for drying articles, comprising a treatment chamber for receiving the objects and a process air duct, through which a process air flow through the treatment chamber is feasible, and which a fan, a heater for heating the process air flow in front of the treatment chamber, an air-air
  • the heat pump cycle comprises a closed working fluid circuit in which a working fluid is circulated and in which an evaporator, a compressor, a condenser and a throttle are arranged, wherein the evaporator for evaporating the working fluid while cooling the of Treatment chamber flowed stream of process air and the condenser for liquefying the working fluid are integrated into the process air duct while heating the process air stream flowing to the treatment chamber.
  • Such a household appliance is apparent from the DE 42 16 106 A1 , There, a tumble dryer is described, in which a process air stream, which dries the objects, is guided in a substantially closed circuit, so that the tumble dryer is configured as a condensation dryer.
  • a process air stream which dries the objects, is guided in a substantially closed circuit, so that the tumble dryer is configured as a condensation dryer.
  • Arranged in this closed circuit are a conventional electric heater and a conventional air-to-air heat exchanger, as well as a heat pump circuit. Therefore, this clothes dryer may also be referred to as a “hybrid dryer” or “hybrid condensation dryer”.
  • WO 2007/141166 A1 is a household appliance in the form of a device for drying laundry, which has, inter alia, a heat pump cycle.
  • the heat pump cycle is in particular a thermoelectric heat pump.
  • the device includes a conventional heater and a conventional air-to-air heat exchanger.
  • the heat pump circuit and the heater and the air-to-air heat exchanger information on preferred operating power output or power consumption are mentioned.
  • the parameter for a compressor for a low evaporation temperature freezer is "LBP" (low back pressure), for a compressor for a refrigeration system “MBP”("medium back pressure") and for a compressor for an air conditioner or heat pump “ HBP “(" high back pressure ").
  • the present invention is therefore based inter alia on the task of further developing a generic hybrid household appliance in such a way that it can be marketed despite a generally increased outlay with a good chance of success.
  • a domestic appliance for drying objects comprising a treatment chamber for receiving the objects and a process air duct, through which a process air flow through the Treatment chamber is feasible, and which has a fan, a heater for heating the process air flow in front of the treatment chamber, an air-air heat exchanger and a heat pump circuit, wherein the heat pump cycle comprises a closed working fluid circuit in which a working fluid is circulated and in which an evaporator, a compressor, a condenser and a throttle are arranged, wherein the evaporator for evaporating the working fluid while cooling the effluent from the treatment chamber process air flow and the condenser for liquefying the working fluid while heating the treatment chamber inflowing process air flow are integrated into the process air duct, in which domestic appliance the Compressor for power between 200 W and 500 W and the heater designed for thermal power between 300 W and 3500 W, and for which domestic appliance the compressor is designed for use in a house advises to freeze objects or in an air conditioner.
  • the compressor in the domestic appliance according to the invention is designed for use in a domestic appliance for freezing objects or an air conditioning system.
  • a compressor is a compressor with the above-mentioned characteristic "LBP", which implies the determination for a freezing application, whereas the application of the invention has the characteristic "HBP" - this because of the usually well above 0 ° C. lying evaporation temperature of the working fluid in the household appliance according to the invention.
  • LBP liquid-butanevaporation temperature
  • HBP a temperature of the working fluid in the household appliance according to the invention.
  • other components of the heat pump circuit, in particular the condenser, besides the compressor are also suitable for implementation with low-cost mass-produced products for refrigeration, freezing or air-conditioning applications.
  • the invention is based on the recognition that the energy balance of a conventional condensation dryer without heat pump system already by the addition of a small heat pump cycle, which recovers as intended only a portion of the total applied to dry the items heat from the effluent from the objects, laden with moisture process air, so far that the resulting hybrid dryer can be allocated to the best energy consumption class known in Western Europe, Class A, and thus Compared to a conventional dryer without heat pump circuit receives a market relevant and recognizable to end users advantage.
  • the invention further proceeds from the recognition that such a small heat pump cycle can be composed of components which are customary for heat pump circuits in refrigeration, in particular freezer, and air conditioning systems and which are cheap available as mass products.
  • the heater is designed for a thermal power between 500 W and 2500 W.
  • the heater is flexible in operation; it can be used to quickly heat up the process air duct when the home appliance is put into service, thus overcoming a fundamental drawback of a conventional dryer with heat pump circuit, and can be back-steered in its performance to accommodate the recirculation of heat into the process air duct by the heat pump circuit ,
  • a likewise preferred development of the domestic appliance according to the invention is characterized in that the compressor is designed to accommodate a power between 300 W and 400 W. This sets a standard for a contribution that the heat pump cycle provides to the application of heat in the domestic appliance, which contribution is appropriate for obtaining the energy consumption class A.
  • the compressor in the domestic appliance according to the invention is preferably a rotary compressor.
  • Rotary compressors are known in various designs, especially as rotary valves, gate valves and turbo compressors. All of these types are characterized in particular by low-noise and low-vibration running and high efficiency.
  • the heat pump cycle has a pumping factor between 1.5 and 2.
  • a further embodiment of the domestic appliance according to the invention provides that the working medium circuit contains a working medium which has a critical temperature between 60 ° C and 100 ° C and a heat of vaporization at the boiling point under normal pressure of at least 220 kJ / kg.
  • working medium are customary "refrigerants" in question, in particular those designated as corresponding ASHRAE and DIN standards compounds or mixtures R22, R290, R134a, R407C and R410A - wherein the use of both chlorine and fluorine-containing R22 in aspects of Environmental protection and use of the R290, namely propane, may be problematic under aspects of fire safety.
  • the heat exchanger is designed to remove a thermal power of between 1000 W and 2000 W and preferably to extract a thermal power of approximately 1500 W from the process air flow.
  • the domestic appliance according to the invention is a tumble dryer.
  • the sole figure of the drawing shows a domestic appliance 1, which is a tumble dryer 1 concrete.
  • the household appliance is intended for drying articles 2, in the present case wet laundry items 2.
  • These articles 2 are located in a treatment chamber 3, which is a rotatable drum and which loosens and drops the objects 2 to be dried as they move flows around a process air stream which is driven in a process air duct 4 by means of a blower 5 in a substantially closed circuit becomes.
  • "Essentially closed” here means that there is no significant difference in pressure between the process air duct 4 and an environment of the domestic appliance 1, although nevertheless no exchange of air between the process air duct 4 and the environment of the domestic appliance 1 takes place to a significant extent.
  • a heater 6 and an air-to-air heat exchanger 7 are arranged in the process air duct 4.
  • the heater 6 is used to heat the process air stream before it flows through the treatment chamber 3, and the air-to-air heat exchanger 7 for cooling the process air stream after it has flowed away from the treatment chamber 3.
  • the heat exchanger 7 is part of both the process air duct 4 and a cooling air duct 8, in which a second fan 9 sucks air from the environment of the domestic appliance 1 and drives through the heat exchanger 7 and back into the environment of the domestic appliance 1.
  • moisture condenses out of the process air stream, which has absorbed it from the objects 2 in the treatment chamber 3.
  • This moisture is reflected in the heat exchanger 7 and flows through a correspondingly provided gradient and / or supported by a (not shown) condensate pump to a condensate collector 10 if necessary. From there, the collected moisture can be disposed of after completion of the drying process.
  • the process air duct 4 is coupled to a heat pump circuit 11, 12, 13, 14, 15.
  • This heat pump cycle 11, 12, 13, 14, 15 comprises a closed working fluid circuit 11, in which a working fluid is circulated. It further comprises an evaporator 12, in which the working fluid is vaporized by absorbing heat from the process air duct 4, a compressor 13, which promotes the vaporized working fluid from the evaporator 12 to a condenser 14 and compresses it, and a throttle 15 in the form of a Control valve, a diaphragm or a capillary, which reduces the pressure of the liquefied working fluid so that it can evaporate again in the evaporator 12, which it flows behind the throttle 15.
  • the condenser 14 is intended for liquefying the compressed working fluid while heating the circulating in the process air duct 4 process air flow before it reaches the treatment chamber 3. Since the process air stream is cooled again in the evaporator 12, moisture also condenses in the evaporator 12 from the process air stream. This moisture also flows through a suitably provided natural gradient and / or supported by said, not shown condensate pump, the condensate collector 10 for later disposal.
  • lint filters are generally known and must be provided in the tumble dryer 1 in order to avoid harmful contamination of the heat exchanger 7 and / or of the evaporator 12. These two components are particularly at risk because they produce moisture, which binds the lint in a wet film, which covers the components and hinders the heat exchange with the cooling air or the working fluid.
  • a lint filter is not required and was therefore not shown for the sake of clarity.
  • the compressor 13 which essentially determines the thermal performance data of the heat pump circuit 11 to 15, is designed to absorb a power of between 200 watts and 500 watts, in particular between 300 watts and 400 watts.
  • the heater 6 is designed for thermal power between 300 watts and 3500 watts, preferably between 500 watts and 2500 watts.
  • the heat exchanger 7, however, is designed to extract a thermal power between 1000 watts and 2000 watts, preferably about 1500 watts, from the process air stream.
  • the heat pump cycle 11 to 15 in this case has a pumping factor between 1.5 and 2.
  • a working medium esp.
  • Such a working medium into consideration which is a critical temperature between 60 ° C and 100 ° C, and a heat of vaporization at the boiling point under atmospheric pressure of at least 220 kJ per kg.
  • the domestic appliance 1 can achieve a specific energy consumption in the drying process, which is low enough to allocate the domestic appliance 1 to the energy consumption class A.
  • the compressor 13 a type may be used which is adapted for use in a domestic appliance for freezing articles or in an air conditioner, and is preferably a rotary compressor. Such types are for use in freezers and Air conditioning systems as mass-produced cheap available, which is why the domestic appliance 1 described herein can be manufactured and marketed despite a relatively high construction cost at a low price.
  • the invention described herein provides a highly advantageous compromise between lowest possible power consumption and lowest cost, and thus provides a particularly inexpensive home appliance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
EP20080104996 2007-08-13 2008-08-08 Appareil ménager hybride de séchage Withdrawn EP2025802A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007038192A DE102007038192A1 (de) 2007-08-13 2007-08-13 Hybrides Hausgerät zum Trocknen

Publications (2)

Publication Number Publication Date
EP2025802A2 true EP2025802A2 (fr) 2009-02-18
EP2025802A3 EP2025802A3 (fr) 2009-10-07

Family

ID=39865409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080104996 Withdrawn EP2025802A3 (fr) 2007-08-13 2008-08-08 Appareil ménager hybride de séchage

Country Status (2)

Country Link
EP (1) EP2025802A3 (fr)
DE (1) DE102007038192A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105668A1 (de) * 2012-06-28 2014-01-02 Miele & Cie. Kg Haushaltsgerät mit einer Trockeneinrichtung
DE102012105670A1 (de) * 2012-06-28 2014-01-02 Miele & Cie. Kg Haushaltsgerät mit einer Trocknungseinrichtung wie Wäschetrockner, Waschtrockner oder Geschirrspülmaschine
EP2921098A1 (fr) * 2014-03-17 2015-09-23 Samsung Electronics Co., Ltd. Appareil domestique doté d'un appareil de séchage
US11186943B2 (en) 2017-10-09 2021-11-30 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107208349B (zh) 2015-02-11 2019-07-16 Bsh家用电器有限公司 干衣机及用于操作的干衣机方法
EP3056603A1 (fr) 2015-02-11 2016-08-17 BSH Hausgeräte GmbH Sèche-linge et procédé de fonctionnement d'un sèche-linge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216106A1 (de) 1992-05-15 1993-11-18 Licentia Gmbh Wäschetrockner mit einem Wärmepumpenkreis
EP0467188B1 (fr) 1990-07-19 2001-04-04 BSH Bosch und Siemens Hausgeräte GmbH Sèche linge avec pompe à chaleur
WO2006029953A1 (fr) 2004-09-13 2006-03-23 BSH Bosch und Siemens Hausgeräte GmbH Procédé de séchage pour un appareil électroménager et appareil électroménager permettant la mise en oeuvre dudit procédé
EP1672294A2 (fr) 2004-12-14 2006-06-21 BSH Bosch und Siemens Hausgeräte GmbH Système de conditionnement d'air
WO2007141166A1 (fr) 2006-06-06 2007-12-13 BSH Bosch und Siemens Hausgeräte GmbH Dispositif et procÉdÉ de sÉchage D'ARTICLES NETTOYÉS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113471A1 (de) * 1981-04-03 1982-10-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Trockengeraet mit waermepumpe
DE19852333A1 (de) * 1998-11-13 2000-05-18 Kulmbacher Klimageraete Wärmepumpe für einen Wäschetrockner
EP1964965A1 (fr) * 2007-03-02 2008-09-03 BSH Bosch und Siemens Hausgeräte GmbH Appareil domestique avec thermopompe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467188B1 (fr) 1990-07-19 2001-04-04 BSH Bosch und Siemens Hausgeräte GmbH Sèche linge avec pompe à chaleur
DE4216106A1 (de) 1992-05-15 1993-11-18 Licentia Gmbh Wäschetrockner mit einem Wärmepumpenkreis
WO2006029953A1 (fr) 2004-09-13 2006-03-23 BSH Bosch und Siemens Hausgeräte GmbH Procédé de séchage pour un appareil électroménager et appareil électroménager permettant la mise en oeuvre dudit procédé
EP1672294A2 (fr) 2004-12-14 2006-06-21 BSH Bosch und Siemens Hausgeräte GmbH Système de conditionnement d'air
WO2007141166A1 (fr) 2006-06-06 2007-12-13 BSH Bosch und Siemens Hausgeräte GmbH Dispositif et procÉdÉ de sÉchage D'ARTICLES NETTOYÉS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
APPLICATION OF DANFOSS HERMETIC COMPRESSORS, 26 July 2007 (2007-07-26)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105668A1 (de) * 2012-06-28 2014-01-02 Miele & Cie. Kg Haushaltsgerät mit einer Trockeneinrichtung
DE102012105670A1 (de) * 2012-06-28 2014-01-02 Miele & Cie. Kg Haushaltsgerät mit einer Trocknungseinrichtung wie Wäschetrockner, Waschtrockner oder Geschirrspülmaschine
DE102012105668B4 (de) * 2012-06-28 2015-01-08 Miele & Cie. Kg Haushaltsgerät mit einer Trockeneinrichtung
DE102012105670B4 (de) * 2012-06-28 2015-01-22 Miele & Cie. Kg Haushaltsgerät mit einer Trocknungseinrichtung wie Wäschetrockner, Waschtrockner oder Geschirrspülmaschine
EP2921098A1 (fr) * 2014-03-17 2015-09-23 Samsung Electronics Co., Ltd. Appareil domestique doté d'un appareil de séchage
US10039434B2 (en) 2014-03-17 2018-08-07 Samsung Electronics Co., Ltd. Household appliance having drying apparatus
US11186943B2 (en) 2017-10-09 2021-11-30 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter
US11761141B2 (en) 2017-10-09 2023-09-19 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

Also Published As

Publication number Publication date
DE102007038192A1 (de) 2009-02-19
EP2025802A3 (fr) 2009-10-07

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